Russia on Monday said it will treat U.S. or coalition aircraft that fly over any of its operating areas in western Syria as targets, after a U.S. F/A-18 Super Hornet downed a Syrian bomber a day earlier.

“Any aircraft, including planes and drones of the international coalition, detected in the operation areas west of the Euphrates River by the Russian air forces will be followed by Russian ground-based air defense and air defense aircraft as air targets,” according to a Russian Defense Ministry statement.

Russia called the downing of a Syrian Air Force Su-22 jet a “cynical violation of Syria’ sovereignty.”

“The US’ repeated combat operations under the guise of ‘combating terrorism’ against the legitimate armed forces of a U.N. member-state are a flagrant violation of international law, in addition to being actual military aggression against the Syrian Arab Republic,” the ministry added.

The United States was well within their rights to shoot down this plane but clearly Russia took it as a sign of aggression.

So far, Trump has made it abundantly clear that he is no Putin lap dog and he’s willing to do what it takes to create a climate where U.S. backed forces can be successful.

Hopefully, the two nations are able to continue to coexist without things escalating further.